Provided are techniques for providing recommendations to improve a query. A query with query keywords and selected categories is received. In response to determining that the selected categories are ranked high with reference to query relevance indicator values for each of the selected categories, a query relevance indicator of the query is calculated with each subcategory using keyword relevance indicators, each subcategory is ranked based on the query relevance indicators, and the ranked subcategories are provided for use in selecting new categories to be submitted with the query.